:root {
  --bg: #0f1220;
  --bg-grad: radial-gradient(1200px 800px at 20% -10%, #2a3566 0%, #0f1220 55%),
             radial-gradient(900px 600px at 110% 10%, #3a2560 0%, transparent 60%);
  --glass: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.14);
  --text: #e8ecf5;
  --text-dim: #9aa3b8;
  --accent: #6c8cff;
  --accent-2: #9d6cff;
  --danger: #ff5d6c;
  --ok: #3ddc97;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

[data-theme="light"] {
  --bg: #eef1f8;
  --bg-grad: radial-gradient(1200px 800px at 20% -10%, #c9d6ff 0%, #eef1f8 55%),
             radial-gradient(900px 600px at 110% 10%, #e0c9ff 0%, transparent 60%);
  --glass: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 255, 255, 0.7);
  --text: #1c2333;
  --text-dim: #5a6480;
  --shadow: 0 8px 32px rgba(80, 90, 140, 0.18);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Microsoft YaHei", Roboto, sans-serif;
  background: var(--bg);
  background-image: var(--bg-grad);
  background-attachment: fixed;
  color: var(--text);
  overflow: hidden;
}

.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
}

.glass {
  background: var(--glass);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border: 1px solid var(--glass-border);
}

/* 工具栏 */
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 0 0 14px 14px;
  box-shadow: var(--shadow);
  z-index: 10;
  flex-wrap: wrap;
}

.nav-group { display: flex; gap: 6px; }

.btn {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text);
  width: 38px; height: 38px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background .15s, transform .1s;
}
.btn:hover { background: var(--glass); }
.btn:active { transform: scale(0.95); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }
.btn.small { width: auto; height: 28px; padding: 0 12px; font-size: 13px; }
.btn.danger { border-color: var(--danger); color: var(--danger); }

.url-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 0 10px;
  min-width: 200px;
}
.lock { font-size: 14px; opacity: 0.8; }
.url-bar {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 14px;
  padding: 10px 4px;
}
.url-bar::placeholder { color: var(--text-dim); }
.btn.go {
  width: auto;
  padding: 0 16px;
  font-size: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none;
  color: #fff;
}

.mode-group { display: flex; gap: 8px; align-items: center; }
.mode-select {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text);
  padding: 9px 10px;
  border-radius: 10px;
  font-size: 13px;
  outline: none;
  cursor: pointer;
}
.mode-select option { background: var(--bg); color: var(--text); }

/* 状态条 */
.statusbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 16px;
  font-size: 12px;
  color: var(--text-dim);
  border-radius: 0;
  border-left: none; border-right: none; border-top: none;
}
.badge {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  padding: 2px 10px;
  border-radius: 99px;
  font-size: 11px;
}

/* 警告条 */
.warnbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: rgba(255, 93, 108, 0.18);
  border-bottom: 1px solid var(--danger);
  color: var(--danger);
  font-size: 13px;
  z-index: 11;
}
.warnbar.hidden { display: none; }
#warnText { flex: 1; }

/* 内容区 */
.content { flex: 1; position: relative; overflow: hidden; }

.home {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  overflow: auto;
}
.home-card {
  max-width: 620px;
  width: 100%;
  padding: 40px 36px;
  border-radius: 20px;
  text-align: center;
  box-shadow: var(--shadow);
}
.home-card h1 { font-size: 34px; margin-bottom: 6px; }
.subtitle { color: var(--text-dim); margin-bottom: 24px; }
.home-search {
  display: flex; gap: 8px; margin-bottom: 18px;
}
.home-search input {
  flex: 1;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 12px 14px;
  color: var(--text);
  font-size: 14px;
  outline: none;
}
.quick { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 24px; }
.chip {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text);
  padding: 6px 14px;
  border-radius: 99px;
  font-size: 13px;
  cursor: pointer;
}
.chip:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.modes-info {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  text-align: left;
  margin-top: 8px;
}
.modes-info div {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 12px;
}
.modes-info b { display: block; margin-bottom: 2px; }
.modes-info span { color: var(--text-dim); }

.view {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: none;
  background: #fff;
}
.view.hidden { display: none; }

.home.hidden { display: none; }

/* 加载 */
.loader {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 20;
}
.loader.hidden { display: none; }
.spinner {
  width: 42px; height: 42px;
  border: 3px solid var(--glass-border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* 响应式 */
@media (max-width: 720px) {
  .toolbar { padding: 8px; gap: 6px; }
  .nav-group .btn { width: 32px; height: 32px; font-size: 16px; }
  .home-card { padding: 28px 18px; }
  .home-card h1 { font-size: 26px; }
  .modes-info { grid-template-columns: 1fr; }
  .mode-select { font-size: 12px; padding: 8px 6px; }
}